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Finding the Fourth Proportional to 546,913.60, 820,370.40 and 397,614.40

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Solution

The fourth proportional to 546,913.60, 820,370.40 and 397,614.40 is: 596,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,913.60 : 820,370.40 = 397,614.40 : x
  2. Step 2: Convert to fraction form
    546,913.60/820,370.40 = 397,614.40/x
  3. Step 3: Cross multiply
    546,913.60x = 820,370.40 × 397,614.40
  4. Step 4: Simplify right side
    546,913.60x = 326,191,084,373.76
  5. Step 5: Solve for x
    x = 326,191,084,373.76/546,913.60
  6. Step 6: Final answer
    x = 596,421.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.